/* Convenience header for conditional use of GNU <libintl.h>.
   Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published
   by the Free Software Foundation; either version 3, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU General Public
   License along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
   USA.  */

#ifndef _LIBGETTEXT_H
#define _LIBGETTEXT_H 1

/* NLS can be disabled through the configure --disable-nls option.  */
#if ENABLE_NLS

/* Get declarations of GNU message catalog functions.  */
#include <libintl.h>

/* You can set the DEFAULT_TEXT_DOMAIN macro to specify the domain used by
   the gettext() and ngettext() macros.  This is an alternative to calling
   textdomain(), and is useful for libraries.  */
#ifdef DEFAULT_TEXT_DOMAIN
#undef gettext
#define gettext(Msgid) dgettext(DEFAULT_TEXT_DOMAIN, Msgid)
#undef ngettext
#define ngettext(Msgid1, Msgid2, N) dngettext(DEFAULT_TEXT_DOMAIN, Msgid1, Msgid2, N)
#endif

#else

/* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which
   chokes if dcgettext is defined as a macro.  So include it now, to make
   later inclusions of <locale.h> a NOP.  We don't include <libintl.h>
   as well because people using "gettext.h" will not include <libintl.h>,
   and also including <libintl.h> would fail on SunOS 4, whereas <locale.h>
   is OK.  */
#if defined(__sun)
#include <locale.h>
#endif

/* Many header files from the libstdc++ coming with g++ 3.3 or newer include
   <libintl.h>, which chokes if dcgettext is defined as a macro.  So include
   it now, to make later inclusions of <libintl.h> a NOP.  */
#if defined(__cplusplus) && defined(__GNUG__) && (__GNUC__ >= 3)
#include <cstdlib>
#if (__GLIBC__ >= 2) || _GLIBCXX_HAVE_LIBINTL_H
#include <libintl.h>
#endif
#endif

/* Disabled NLS.
   The casts to 'const char *' serve the purpose of producing warnings
   for invalid uses of the value returned from these functions.
   On pre-ANSI systems without 'const', the config.h file is supposed to
   contain "#define const".  */
#undef gettext
#define gettext(Msgid) ((const char*)(Msgid))
#undef dgettext
#define dgettext(Domainname, Msgid) ((void)(Domainname), gettext(Msgid))
#undef dcgettext
#define dcgettext(Domainname, Msgid, Category) ((void)(Category), dgettext(Domainname, Msgid))
#undef ngettext
#define ngettext(Msgid1, Msgid2, N) \
    ((N) == 1 ? ((void)(Msgid2), (const char*)(Msgid1)) : ((void)(Msgid1), (const char*)(Msgid2)))
#undef dngettext
#define dngettext(Domainname, Msgid1, Msgid2, N) ((void)(Domainname), ngettext(Msgid1, Msgid2, N))
#undef dcngettext
#define dcngettext(Domainname, Msgid1, Msgid2, N, Category) ((void)(Category), dngettext(Domainname, Msgid1, Msgid2, N))
#undef textdomain
#define textdomain(Domainname) ((const char*)(Domainname))
#undef bindtextdomain
#define bindtextdomain(Domainname, Dirname) ((void)(Domainname), (const char*)(Dirname))
#undef bind_textdomain_codeset
#define bind_textdomain_codeset(Domainname, Codeset) ((void)(Domainname), (const char*)(Codeset))

#endif

/* A pseudo function call that serves as a marker for the automated
   extraction of messages, but does not call gettext().  The run-time
   translation is done at a different place in the code.
   The argument, String, should be a literal string.  Concatenated strings
   and other string expressions won't work.
   The macro's expansion is not parenthesized, so that it is suitable as
   initializer for static 'char[]' or 'const char[]' variables.  */
#define gettext_noop(String) String

/* The separator between msgctxt and msgid in a .mo file.  */
#define GETTEXT_CONTEXT_GLUE "\004"

/* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
   MSGID.  MSGCTXT and MSGID must be string literals.  MSGCTXT should be
   short and rarely need to change.
   The letter 'p' stands for 'particular' or 'special'.  */
#ifdef DEFAULT_TEXT_DOMAIN
#define pgettext(Msgctxt, Msgid) \
    pgettext_aux(DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
#else
#define pgettext(Msgctxt, Msgid) pgettext_aux(NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
#endif
#define dpgettext(Domainname, Msgctxt, Msgid) \
    pgettext_aux(Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
#define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
    pgettext_aux(Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
#ifdef DEFAULT_TEXT_DOMAIN
#define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
    npgettext_aux(DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
#else
#define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
    npgettext_aux(NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
#endif
#define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
    npgettext_aux(Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
#define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
    npgettext_aux(Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)

#ifdef __GNUC__
__inline
#else
#ifdef __cplusplus
inline
#endif
#endif
    static const char*
    pgettext_aux(const char* domain, const char* msg_ctxt_id, const char* msgid, int category) {
    const char* translation = dcgettext(domain, msg_ctxt_id, category);
    if (translation == msg_ctxt_id)
        return msgid;
    else
        return translation;
}

#ifdef __GNUC__
__inline
#else
#ifdef __cplusplus
inline
#endif
#endif
    static const char*
    npgettext_aux(
        const char* domain, const char* msg_ctxt_id, const char* msgid, const char* msgid_plural, unsigned long int n,
        int category
    ) {
    const char* translation = dcngettext(domain, msg_ctxt_id, msgid_plural, n, category);
    if (translation == msg_ctxt_id || translation == msgid_plural)
        return (n == 1 ? msgid : msgid_plural);
    else
        return translation;
}

/* The same thing extended for non-constant arguments.  Here MSGCTXT and MSGID
   can be arbitrary expressions.  But for string literals these macros are
   less efficient than those above.  */

#include <string.h>

#define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS \
    (((__GNUC__ >= 3 || __GNUG__ >= 2) && !__STRICT_ANSI__) /* || __STDC_VERSION__ >= 199901L */)

#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
#include <stdlib.h>
#endif

#define pgettext_expr(Msgctxt, Msgid)              dcpgettext_expr(NULL, Msgctxt, Msgid, LC_MESSAGES)
#define dpgettext_expr(Domainname, Msgctxt, Msgid) dcpgettext_expr(Domainname, Msgctxt, Msgid, LC_MESSAGES)

#ifdef __GNUC__
__inline
#else
#ifdef __cplusplus
inline
#endif
#endif
    static const char*
    dcpgettext_expr(const char* domain, const char* msgctxt, const char* msgid, int category) {
    size_t      msgctxt_len = strlen(msgctxt) + 1;
    size_t      msgid_len   = strlen(msgid) + 1;
    const char* translation;
#if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
    char msg_ctxt_id[msgctxt_len + msgid_len];
#else
    char  buf[1024];
    char* msg_ctxt_id = (msgctxt_len + msgid_len <= sizeof(buf) ? buf : (char*)malloc(msgctxt_len + msgid_len));
    if (msg_ctxt_id != NULL)
#endif
    {
        memcpy(msg_ctxt_id, msgctxt, msgctxt_len - 1);
        msg_ctxt_id[msgctxt_len - 1] = '\004';
        memcpy(msg_ctxt_id + msgctxt_len, msgid, msgid_len);
        translation = dcgettext(domain, msg_ctxt_id, category);
#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
        if (msg_ctxt_id != buf)
            free(msg_ctxt_id);
#endif
        if (translation != msg_ctxt_id)
            return translation;
    }
    return msgid;
}

#define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \
    dcnpgettext_expr(NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
#define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
    dcnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)

#ifdef __GNUC__
__inline
#else
#ifdef __cplusplus
inline
#endif
#endif
    static const char*
    dcnpgettext_expr(
        const char* domain, const char* msgctxt, const char* msgid, const char* msgid_plural, unsigned long int n,
        int category
    ) {
    size_t      msgctxt_len = strlen(msgctxt) + 1;
    size_t      msgid_len   = strlen(msgid) + 1;
    const char* translation;
#if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
    char msg_ctxt_id[msgctxt_len + msgid_len];
#else
    char  buf[1024];
    char* msg_ctxt_id = (msgctxt_len + msgid_len <= sizeof(buf) ? buf : (char*)malloc(msgctxt_len + msgid_len));
    if (msg_ctxt_id != NULL)
#endif
    {
        memcpy(msg_ctxt_id, msgctxt, msgctxt_len - 1);
        msg_ctxt_id[msgctxt_len - 1] = '\004';
        memcpy(msg_ctxt_id + msgctxt_len, msgid, msgid_len);
        translation = dcngettext(domain, msg_ctxt_id, msgid_plural, n, category);
#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
        if (msg_ctxt_id != buf)
            free(msg_ctxt_id);
#endif
        if (!(translation == msg_ctxt_id || translation == msgid_plural))
            return translation;
    }
    return (n == 1 ? msgid : msgid_plural);
}

#endif /* _LIBGETTEXT_H */
